Science: 72 Inches of Bubbles

At Berkeley, Calif., one of the world's biggest, most complex and most
dangerous scientific instruments was ready for full operation for the
first time. Its name was a tongue twister: the liquid hydrogen bubble
chamber, designed and built by the University of California's Radiation
Laboratory. In the next week or so, a beam of antiprotons from
Berkeley's great 6 billion-volt Bevatron will pass through a pipe 200
ft. long, enter an odd-looking building and strike into a glass-topped
metal bathtub containing 150 gal. of liquid hydrogen. As the
antiprotons travel through the liquid,...